TED talks
Can we eat to starve cancer (looks at angiogenesis, tumour growth and how we can affect it with our diet)
How bacteria talk (looks at how they communication takes place between living organisms)
Jungle search for viruses (Virus hunter Nathan Wolfe is outwitting the next pandemic by staying two steps ahead: discovering deadly new viruses where they first emerge)
Animations of Unseeable Biology (We have no ways to directly observe molecules and what they do — Drew Berry wants to change that. In this talk, he shows his scientifically accurate (and entertaining!) animations that help researchers see unseeable processes within our own cells.

The Infinite Monkey Cage - chaired by Professor Brian Cox excellent podcasts can be downloaded and you can listen to discussions about topics such as 'What makes science, science?','What is death?' 'Can Science Save us?', 'Are humans uniquely unique?' 'Science versus Art'.

In Our Time with Melvyn Bragg podcasts covering a broad range of subjects such as culture, art, philosophy and SCIENCE.

The Royal Institution Lectures
Meet your Brain (We all know that we think, but not how we think)
How Life Can Survive without Water

Another way of looking at the cell - really great resources and a great video - a great weekend watch!
The Hidden life of the cell - produced by the Wellcome Trust - provides extra depth and detail
The Hidden Life of the Cell - BBC documentary